This really stands for the admixture of white female and black male. In American highschools the girls were little symbols like this one to silently let other white girls know that they've slept with black guys. They don't want the white guys to know because white guys get annoyed when white girls mention that they've slept with black boys.
Look closely at the white girls you meet and look at the little bracelets and adornments they wear. Do they have coloured beads in their braided blonde hair? All of these are symbols the white women are using to communicate sisterhood to other white women and willingness to breed to black and coloured guys.
Even piercings and tatoos are symbols.
White women are organizing a conspiracy against us. A silent but well-organized conspiracy. They prefer black men and their large phalluses. They want black babies. They like Asian men too.